RARA IRF500

Product Features

  • Flat type metal clad wire wound resistor
  • Resistance options from 1ฮฉ up to 5.78kฮฉ
  • Power rating of 500W (on a heat sink)
  • Tolerance options between ยฑ0.5% and ยฑ10.0%
  • TCR of +260 ppm/ยฐC maximum
  • For UL Approval see the ULF Series
  • Compliant

The IRF500 flat type metal clad wire wound resistor series from RARA, offers a power rating of up to 500W on a heat sink and available resistance values between 1ฮฉ and 5.78kฮฉ. These high power and low inductance resistors are designed for industrial and other applications where space is at a premium, the flat design also allows for excellent heat dissipation. The IRF500 series from RARA offers an extruded aluminium housing which provides strong and rugged protection, with options of cement or silicone filling materials as well as tolerances as low as ยฑ0.5%. This resistor series offers a temperature range from -55ยฐC up to +200ยฐC (cement filling material).

  • Flat space saving metal clad wire wound resistor
  • Cement (standard) or silicone filling material with an extruded aluminium housing
  • 300mm flying leads
  • Resistance ranges available between 1ฮฉ and 5.78kฮฉ
  • TCR of +260 ppm/ยฐC maximum
  • Tolerance values available of ยฑ0.5%, ยฑ1.0%, ยฑ2.0%, ยฑ5.0% and ยฑ10.0%
  • Power rating of 500W (on a heat sink)
  • Insulation resistance of 20Mฮฉ minimum
  • Temperature range between -55ยฐC and +200ยฐC (cement) or -55ยฐC and +150ยฐC (silicone)
  • Short time overload of 5 x power rating for 5 seconds

Typical applications for the IRF series include:

  • Motor drives
  • Braking and snubbing applications
  • Power sources for industrial equipment

Specifications

Weight 525.00000 kg
Dimensions 10.00 x 80.00 x 330.00mm
Product Type

, ,

Series / Model

Power Rating

Minimum Resistance

1ฮฉ

Maximum Resistance

5.78kฮฉ

Tolerance

, , , ,

Temperature Coefficient

Insulation Resistance

20Mฮฉ minimum

Filling Material

Cement, Silicone

Temperature Range (ยฐC)

-55 to +150ยฐC (Silicone), -55 to +200ยฐC (Cement)

Ordering Info

Below is the model number configuration for the IRF series from RARA.
Ordering example:
IRFXXXXXXXXฮฉXFLXXX

Series / Model (IRFXXX)

IRF500

Filling Material (X)

C
Cement
S
Silicone

Resistance Value (XXXXฮฉ)

Resistance value expressed in ohms, for example 0.5ฮฉ or 225.5ฮฉ.

Tolerance (X)

D
ยฑ0.5%
F
ยฑ1%
G
ยฑ2%
J
ยฑ5%
K
ยฑ10%

Termination (FLXXX)

FL XXXย  ย  ย  Flying Lead **
(Blank)ย  ย ย  Tab Terminal

* Please include required lead length with quote request, for example, FL300 for 300mm flying leads.
Thermostat options are available for these models. Please speak to an engineer for more information.

Product Variations

SKUResistance ValueToleranceFilling MaterialLead Length
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ0.5%Cement
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ0.5%Silicone
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ1%Cement
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ1%Silicone
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ10%Cement
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ10%Silicone
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ2%Cement
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ2%Silicone
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ5%Cement
RARA IRF500 SeriesCustom (1ฮฉ - 5.78kฮฉ)ยฑ5%Silicone

IRF Series Products

Electronic Components

Product nameDimensionsPower RatingMinimum ResistanceMaximum ResistanceToleranceTemperature CoefficientDatasheet 
RARA IRF10010.00 x 80.00 x 90.00mm100W1ฮฉ1.1kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF15010.00 x 80.00 x 120.00mm150W1ฮฉ1.75kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF20010.00 x 80.00 x 150.00mm200W1ฮฉ2.2kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF25010.00 x 80.00 x 180.00mm250W1ฮฉ2.79kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF30010.00 x 80.00 x 210.00mm300W1ฮฉ3.5kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF40010.00 x 80.00 x 270.00mm400W1ฮฉ4.45kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product
RARA IRF50010.00 x 80.00 x 330.00mm500W1ฮฉ5.78kฮฉยฑ0.5%, ยฑ1%, ยฑ2%, ยฑ5%, ยฑ10%ยฑ260 ppm/ยฐC View Product

Resources

Product Datasheet

Supporting Manufacturer Information

RARA IRN/ULN/IRF/ULF Flat Type Metal Clad Wire Wound Resistors

RARA IRF500

RARA IRF500